1 ; RUN: llc < %s -mtriple=arm64-apple-ios7.0 | FileCheck %s 2 3 define void @test_load_store(half* %in, half* %out) { 4 ; CHECK-LABEL: test_load_store: 5 ; CHECK: ldr [[TMP:h[0-9]+]], [x0] 6 ; CHECK: str [[TMP]], [x1] 7 %val = load half, half* %in 8 store half %val, half* %out 9 ret void 10 } 11 12 define i16 @test_bitcast_from_half(half* %addr) { 13 ; CHECK-LABEL: test_bitcast_from_half: 14 ; CHECK: ldrh w0, [x0] 15 %val = load half, half* %addr 16 %val_int = bitcast half %val to i16 17 ret i16 %val_int 18 } 19 20 define i16 @test_reg_bitcast_from_half(half %in) { 21 ; CHECK-LABEL: test_reg_bitcast_from_half: 22 ; CHECK-NOT: str 23 ; CHECK-NOT: ldr 24 ; CHECK-DAG: fmov w0, s0 25 ; CHECK: ret 26 %val = bitcast half %in to i16 27 ret i16 %val 28 } 29 30 define void @test_bitcast_to_half(half* %addr, i16 %in) { 31 ; CHECK-LABEL: test_bitcast_to_half: 32 ; CHECK: strh w1, [x0] 33 %val_fp = bitcast i16 %in to half 34 store half %val_fp, half* %addr 35 ret void 36 } 37 38 define half @test_reg_bitcast_to_half(i16 %in) { 39 ; CHECK-LABEL: test_reg_bitcast_to_half: 40 ; CHECK-NOT: str 41 ; CHECK-NOT: ldr 42 ; CHECK-DAG: fmov s0, w0 43 ; CHECK: ret 44 45 %val = bitcast i16 %in to half 46 ret half %val 47 } 48 49 define float @test_extend32(half* %addr) { 50 ; CHECK-LABEL: test_extend32: 51 ; CHECK: fcvt {{s[0-9]+}}, {{h[0-9]+}} 52 53 %val16 = load half, half* %addr 54 %val32 = fpext half %val16 to float 55 ret float %val32 56 } 57 58 define double @test_extend64(half* %addr) { 59 ; CHECK-LABEL: test_extend64: 60 ; CHECK: fcvt {{d[0-9]+}}, {{h[0-9]+}} 61 62 %val16 = load half, half* %addr 63 %val32 = fpext half %val16 to double 64 ret double %val32 65 } 66 67 define void @test_trunc32(float %in, half* %addr) { 68 ; CHECK-LABEL: test_trunc32: 69 ; CHECK: fcvt {{h[0-9]+}}, {{s[0-9]+}} 70 71 %val16 = fptrunc float %in to half 72 store half %val16, half* %addr 73 ret void 74 } 75 76 define void @test_trunc64(double %in, half* %addr) { 77 ; CHECK-LABEL: test_trunc64: 78 ; CHECK: fcvt {{h[0-9]+}}, {{d[0-9]+}} 79 80 %val16 = fptrunc double %in to half 81 store half %val16, half* %addr 82 ret void 83 } 84
